20183776

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:491

約数の個数: 48

約数和(自身を含む): 42411600

約数和(自身を除く): 22227824

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 89, 152, 178, 304, 356, 373, 608, 712, 746, 1424, 1492, 1691, 2848, 2984, 3382, 5968, 6764, 7087, 11936, 13528, 14174, 27056, 28348, 33197, 54112, 56696, 66394, 113392, 132788, 226784, 265576, 531152, 630743, 1062304, 1261486, 2522972, 5045944, 10091888, 20183776]

約数ペア:

[(1, 20183776), (2, 10091888), (4, 5045944), (8, 2522972), (16, 1261486), (19, 1062304), (32, 630743), (38, 531152), (76, 265576), (89, 226784), (152, 132788), (178, 113392), (304, 66394), (356, 56696), (373, 54112), (608, 33197), (712, 28348), (746, 27056), (1424, 14174), (1492, 13528), (1691, 11936), (2848, 7087), (2984, 6764), (3382, 5968)]